class_docstr: Cifar10 data set.
  
  Described by http://www.cs.toronto.edu/~kriz/cifar.html.
code: def num_examples_per_epoch(subset="train"):
      if subset == "train":
          return 45000
      elif subset == "validation":
          return 5000
      elif subset == "eval":
          return 10000
      else:
          raise ValueError('Invalid data subset "%s"' % subset)
  
file_path: dragonfly/examples/nas/cg/cifar/cifar10.py
imports: import os
  import tensorflow
label_desc: Use image node_id 6 for calling the Cifar10DataSet obj's underlying member method code with example usage: obj.num_examples_per_epoch(subset) and returns: int, int, int